34F Operator is for all TAC series 'P' valves. Will not function with TAC3. 2-5/8" wide, 3-7/16" long and 1-1/2" high. Mount valve shoulder to bracket. Retain with lock nut and lock washer. Back and sides are open for plumbing. Non-skid rubber pads on both sides. Mount with two (2) 3/16" diameter holes on 1-5/8" centers, 9/16" from back.